[0.1.0]
* Initial version

[0.1.1]
* Pin revision to e1fe52639b6d9e87

[0.2.0]
* Use upstream version 1.10.0

[0.2.1]
* Use latest smtp settings

[0.3.0]
* New base image
* Update to upstream 2.1.0

[0.4.0]
* New base image
* Update to upstream 3.0.0
* Enable optional single sign-on

[0.5.0]
* New base image 0.10.0

[0.5.1]
* Do not pre-setup an initial first user
* Fix usage information